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Open source projects and samples from Microsoft
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Open Source at Microsoft

Get Involved

Right now, open communities are building amazing software together, and there are excellent "good first issue" opportunities, if you're looking to get involved.

Visit opensource.microsoft.com to learn more!

Microsoft projects adopt the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ.

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  1. vscode vscode Public

    Visual Studio Code

    TypeScript 184k 39.3k

  2. TypeScript TypeScript Public

    TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

    TypeScript 109k 13.4k

  3. PowerToys PowerToys Public

    Microsoft PowerToys is a collection of utilities that supercharge productivity and customization on Windows

    C# 132k 7.9k

  4. terminal terminal Public

    The new Windows Terminal and the original Windows console host, all in the same place!

    C++ 103k 9.2k

  5. semantic-kernel semantic-kernel Public

    Integrate cutting-edge LLM technology quickly and easily into your apps

    C# 27.7k 4.6k

Repositories

Showing 10 of 7775 repositories
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 183,983 MIT 39,260 5,000+ (501 issues need help) 1,733 Updated Apr 18, 2026
  • durabletask-js Public

    A Durable Task JavaScript SDK compatible with Azure Durable Task Scheduler

    microsoft/durabletask-js’s past year of commit activity
    TypeScript 11 MIT 10 32 5 Updated Apr 18, 2026
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    10,493 MIT 6,725 1,142 285 Updated Apr 18, 2026
  • BC-Bench Public

    Inspired by SWE-Bench, for Business Central (AL) ecosystem.

    microsoft/BC-Bench’s past year of commit activity
    Jupyter Notebook 22 MIT 7 1 5 Updated Apr 18, 2026
  • fast Public

    The adaptive interface system for modern web experiences.

    microsoft/fast’s past year of commit activity
    TypeScript 9,641 618 81 6 Updated Apr 18, 2026
  • fhir-server Public

    A service that implements the FHIR standard

    microsoft/fhir-server’s past year of commit activity
    TSQL 1,349 MIT 582 89 (2 issues need help) 74 Updated Apr 18, 2026
  • garnet Public

    Garnet is a remote cache-store from Microsoft Research that offers strong performance (throughput and latency), scalability, storage, recovery, cluster sharding, key migration, and replication features. Garnet can work with existing Redis clients.

    microsoft/garnet’s past year of commit activity
    C# 11,797 MIT 653 26 (13 issues need help) 29 Updated Apr 18, 2026
  • quicreach Public

    A 'ping' equivalent tool for QUIC.

    microsoft/quicreach’s past year of commit activity
    C++ 142 MIT 35 1 (1 issue needs help) 1 Updated Apr 18, 2026
  • fabric-toolbox Public

    Fabric toolbox is a repository of tools, accelerators, scripts, and samples to accelerate your success with Microsoft Fabric, brought to you by Fabric CAT.

    microsoft/fabric-toolbox’s past year of commit activity
    PowerShell 741 MIT 327 77 6 Updated Apr 18, 2026
  • fluentui-charting-contrib Public

    Contributor tools and guides for fluentui charting library

    microsoft/fluentui-charting-contrib’s past year of commit activity
    TypeScript 26 MIT 13 2 52 Updated Apr 18, 2026
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